tiles: CLEAR is not a zone-center
git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@650 d9718cc8-9f43-0410-858b-315f434eb58c
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@ -403,6 +403,6 @@ public class TileConstants
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public static boolean isZoneCenter(int tile)
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{
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return (tile & ZONEBIT) != 0;
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return tile >= 0 && (tile & ZONEBIT) != 0;
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}
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}
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